This paper studies intertemporal asset pricing in network economies when distress shocks can propagate through the network, similarly to epidemic outbreaks. Two classes of equilibria exist. In the fi rst, idiosyncratic shocks are diversi fiable and do not affect investor asset valuations. The...

It is well known fact that all good things, as also bad things, come to an end and business cycles pass through good and bad economic times. Economically 2010 was a year of transition from economic recession to recovery. Economies were improving in some countries and industries were showing...

By all accounts, the variety and scale of government intervention to assist individual businesses and industries, and to provide general economic stimulus during the 2008-2009 economic crisis, was extraordinary. Understandably, taxpayers have been concerned about the cost. A simple tally of...

We use stochastic optimal control-dynamic programming (DP) to derive the optimal foreign debt/net worth, consumption/net worth, current account/net worth, and endogenous growth rate in an open economy. Unlike the literature that uses an Intertemporal Budget Constraint (IBC) or the Maximum...

This paper examines how financial reporting regulations affect, and respond to, macroeconomic cycles by exploring a positive framework in which regulators subject to political pressures respond to cyclical demands by borrowers and lenders. We establish that, as economic conditions initially...

The U.S. residential housing market collapse illustrates the consequences of ignoring risk while funding mortgage borrowing. Collateral over-valuation was a foundational piece of the crisis. Over the past few decades, secondary markets, securitization, policy and psychology increased the flow of...

I consider the possibility that individual agents' savings and portfolio choices can have negative externalities on public finances, whenever retirement consumption drops below a minimum level. Within this framework, I discuss optimal pension design. I show the optimality of two policies. The...

World leaders have declared the G20 to be the premier forum for economic cooperation. But as its influence and policy agenda has grown, so too has the need to be able to effectively model the G20 and the implications of its policy agenda. The paper introduces the G-Cubed (G20) model: a...

I consider the possibility that individual agents' savings and portfolio choices can have negative externalities on public finances, whenever retirement consumption drops below a minimum level. Within this framework, I discuss optimal pension design. I show the optimality of two policies. The...

What is an optimal or a sustainable external debt - for a country, region or sector? How should one monitor and evaluate debt to preclude a crisis? We use stochastic optimal control/dynamic programming to derive an optimal debt. The deviation of the actual from the optimal will serve as a...